Inhaler



(No Model.) y

A. M. LONG.

INHALER. N0. 321,904.

Patented July 7, 1885.l

' Nrrnn STATES Parenr Ormea.

AMOS M. LONG, OF MONROE, ,MICHIGAN INHALER.

SPECIFICATION forming part of Letters Patent No. 321,904, dated July 7, 1885. Application filed April 23, 1885. (No model.)

To all whom it may concern/.-

Be it known that I, AMOS M. LONG, a citizen ofthe United States, and a resident of Monroe, county of Monroe, and State of Michigan, have invented certain new and useful Improvements in Inhalers, of which the following is a specification.

The object of my invention is to simplify the means hitherto employed for converting an ordinary inhaling-valve into a positive cutoff. I secure this object by arranging within the inhaler-tube a spring-lever carrying a claw at its end, and mechanism-by which said claw engages with the valve-stein, thereby drawing the valve rmly against its seat and cans* ing it to act as a cut-off.V By pressure upon the lever the claw is disengaged from the stem, and the valve is left free to act as an ordinary inhaling-valve, opening with the pressure of the gas-flow and closing with that of the exhaled breath.

Figure 1 represents alongitudinal'sectional view of the inhaler, showing the valve acting as a cut-olf. Fig. 2 represents asimilar View, showing the valve acting as an inhaling-valve. Fig. 3 represents an end view of that section of the tube which contains the spring-lever and the actuating mechanism thereof. Fig. 4 represents the claw, which, when engaged with the valvestem, draws the valve against its seat, causing it to act as a cut-off. Fig. 5 repsents a modified form of the device, showing a loose valve-disk, instead of the rigid one shown in Fig. 1, said disk being held against its seat by the crown-plate rigidly attached to the stem and acted upon by the spring-lever.

Like letters and figures indicate like parts.

The inhaler is composed of tube-sections A B C, connected together by screw and thread at 13 and L1. F is the lever provided with claw 10, and pivoted to a lug, 8, on the inner side of the tube. This claw (best shown in Fig. 4) is intended to grasp the valve-stem K at its head 2, and, through the spring G, acting upon lever F, to hold the valve H against its seat 7.

The valvestemK passes through cross-bars 5 and G, which act as guides and supports for said stem. rIhe lever F passes through and has a movement in vertical slots in thumbrod D and its guide-socket E. (Shown in Fig.

3.) By pressing on the thumb-buttonAL the lever is depressed, the claw disengaged from the end of the valve-stem, leaving the valve H to perform the function of an inhaling-valve.

Spring 3 is attached to the valvestem at 4, its other end resting against cross-bar C, to which it is secured.

12 is a spring within the guide-socket E, assistingin the prompt return of the lever F when the pressure is removed from thumbbutton L.

The guide-socket E is vfirmly connected to the tube by a screw at 9, or by other approved means.

M is t-he rubber hood which fits over the neck of the inhaler-tube, and in which the exhaling-valve P is located.

When section C is to be screwed on or off of B, the thumb-button should be depressed to its lowest point, in order to free the valve pin or stem from contactwith claw 10. Thevalvedisk, which is rigidly attached to the stem, as

shown in Fig. 1, may have free play upon the pin or stem, 'acting as an inhaling-valve, until the crown-plate, rigidly attached to said stem, is drawn inwardly and against it by the action of the released spring-lever F.

15 is a plate or disk rigidly connected with the stem, and against which the claw presses in its downward movement to open the valve Jloy carrying outwardly the crown-plate which contines it.

The operation of the inhaler is as follows: When gas is to be administered, pressure on the thumb-button depresses the lever, releases the valve,and allows a free flow of gas through the tube. By remo ving the pressure the claw engages with the valve-stem, draws the valve against its seat, and the gas is instantly cut oft'.

I do not confine myself to the use of a spiral spring for the return of the lever when the pressure is removed from the pressure-bar, nor to the exact form and mode of attachment of said lever, as it is evident that the form of both lever and spring may be changed without departing from the essential feature of my invention.

What I claim as new and of my invention,

and for which I ask Letters Patent of the United States, is

1. In an inhaler, the combination of a valve ICO having a stem and aetuatingspring thereon, K and spring` 3, and supported by cross-bars 1o and supported by suitable erossbars, with a 5 and G, with. lever F, having claw 10 and spring-lever piveted to a lug Within the tube, spring G, guide-socket E, and pressurebar D, said lever having` a claw to engage with and substantially as set forth and described hold said valve-stein, whereby the valve when so held acts as a eut-off, and as au inhaling valve when released from Said claw, substan- I tially as set forth and described.

2. The combination of valve H, having stem AMOS M. LONG.

Witnesses:

CONSTANT LUCE, T. A. STRONG. 

